Malicious PDF — malware analysis report

Heuristics 8

• PDF links to known malicious redirector infrastructure critical PDF_MALICIOUS_REDIRECTOR_LINK
  PDF contains a clickable URI to redirector infrastructure used by a known malicious PDF SEO/adware delivery campaign. These documents typically rely on user interaction and redirect chains rather than a PDF parser vulnerability.
• Small PDF contains mass external PDF link farm critical PDF_SEO_LINK_FARM
  Small PDF contains many clickable external PDF links, mostly clustered on one host. This matches generated SEO/link-farm PDF carriers used to route users into malicious or unwanted-software delivery chains, rather than a normal document citation pattern.
• Image lure linking to an SEO redirector (free-download phishing) high PDF_SEO_UTM_REDIRECTOR_LINK
  PDF embeds an image with little or no body text and a clickable link to a multi-word utm_term / FeedBurner-proxied SEO redirector — the 'free ebook / solution-manual / document download' phishing family that ranks for natural-language search queries and routes the user into a payload/redirect chain. The PDF carries no exploit; the risk is the linked destination. Flagged structurally (image lure + SEO redirector) so it does not depend on a ClamAV/ML signature, and regardless of how many filler text pages the lure carries.
• Browser extension / update installation lure high SE_BROWSER_INSTALL_LURE
  Document tells the user to install a browser extension, plugin, viewer, or browser update to view content — a common social-engineering path for credential theft and malware installation
• Cloud document impersonation lure medium SE_CLOUD_DOC_LURE
  Document impersonates a cloud file-sharing service such as SharePoint, OneDrive, Google Drive, Dropbox, Box, or Microsoft 365 and asks the user to open, verify, or access a shared document
• Visual download / call-to-action button lure low SE_DOWNLOAD_BUTTON
  Document contains a call-to-action phrase ('Click here to download', 'Download Now', etc.) — low-signal unless other findings point to a malicious workflow
• Object number defined twice with different bodies info PDF_DUPLICATE_OBJ_BODY_INCREMENTAL
  The same indirect object (N G) is defined more than once with different body bytes. First-wins and last-wins readers will resolve different content, which is a parser-confusion shape used by targeted PDFs. Body-only differences are common in benign incremental updates, so severity is raised only when the duplicate carries active content.
• Embedded URL info EMBEDDED_URL
  One or more URLs were extracted from the document. The URL itself is not a detection — see the per-URL labels for which channel (macro, JS, link annotation, document body, ...) reached each URL.
  URL https://ttraff.link/pify?keyword=uploading+to+google+drive+from+android In PDF document text

  • https://cdn-cms.f-static.net/uploads/4367941/normal_5f8b7f5132bdb.pdfIn PDF document text
  • https://cdn-cms.f-static.net/uploads/4382187/normal_5f93f19ad1183.pdfIn PDF document text
  • https://xonuvalax.weebly.com/uploads/1/3/1/4/131437330/misog.pdfIn PDF document text
  • https://kakawugob.weebly.com/uploads/1/3/0/9/130969990/e43b0.pdfIn PDF document text
  • https://tubenuluni.weebly.com/uploads/1/3/1/4/131437864/ceb0f.pdfIn PDF document text
  • https://kuguzozivef.weebly.com/uploads/1/3/0/7/130739994/fb128dffcb4a449.pdfIn PDF document text
  • https://kokexofagisukop.weebly.com/uploads/1/3/2/7/132710589/916761cf89a.pdfIn PDF document text
  • https://vaxajiwozoli.weebly.com/uploads/1/3/1/6/131637631/4243278.pdfIn PDF document text
  • https://zirufifun.weebly.com/uploads/1/3/0/8/130874679/9183651.pdfIn PDF document text
  • http://www.ascendercorp.com/In extracted file (font_00_sfnt_off00007a84.bin)
  • http://www.ascendercorp.com/typedesigners.htmlIn extracted file (font_00_sfnt_off00007a84.bin)
  • http://www.daltonmaag.com/In extracted file (font_02_sfnt_off0000aea4.bin)
  • https://s3.amazonaws.com/leguvefu/autocar_india_january_2018.pdfIn PDF document text
  • https://s3.amazonaws.com/wupiwupiwot/bile_salts_and_bile_pigments_in_urine.pdfIn PDF document text
  • https://s3.amazonaws.com/jenagubadopi/calculus_early_transcendentals_7th_edition_metric_version.pdfIn PDF document text
  • https://s3.amazonaws.com/subud/dsm_5_unspecified_anxiety_disorders.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/9bab9d30-7283-4e2a-bb77-5e55a1ced662/55985472192.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/ce82e86c-4a96-4b1f-9c8b-7ba9b2073060/46104110418.pdfIn PDF document text
  • https://uploads.strikinglycdn.com/files/8f5a8cfa-eb1d-4ad3-adf2-8b646083a029/68012025088.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0496/9362/2429/files/57607533280.pdfIn PDF document text
  • https://cdn.shopify.com/s/files/1/0483/8640/8600/files/loturowaliwikejeb.pdfIn PDF document text
  • http://www.w3.org/1999/02/22-rdf-syntax-ns#In PDF document text
  • http://purl.org/dc/elements/1.1/In PDF document text
  • http://ns.adobe.com/pdf/1.3/In PDF document text
  • http://ns.adobe.com/xap/1.0/In PDF document text
  • http://ns.adobe.com/xap/1.0/mm/In PDF document text
  • http://ns.adobe.com/xap/1.0/rights/In PDF document text
  • http://scripts.sil.org/OFLIn extracted file (font_00_sfnt_off00007a84.bin)

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